2020 IRMAA Brackets for Medicare Premiums

The Medicare Part B and Part D Income-Related Monthly Adjusted Amount (IRMAA) charged to higher income earners changed in 2022. Learn how some Medicare beneficiaries may pay lower surcharges over time due to the change.

For updated information on 2022 Medicare IRMAA costs, visit our updated article. For 2020 information, continue reading below.

It’s not uncommon for Medicare premiums to increase every year. But for some higher-earning Medicare Part B and Part D beneficiaries, a 2020 change to Medicare Income-Related Monthly Adjust Amounts (IRMAA) could result in savings on their Part B and/or Part D premiums.

Starting in 2020, the surcharge that is tacked onto Part B and Part D premiums for higher income earners is indexed to the Bureau of Labor Statistics' Consumer Price Index for Urban Consumers (CPI-U). IRMAA brackets weren't previously indexed in this way.

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The change is anticipated to reduce the number of beneficiaries who are subject to this extra charge for 2020 Medicare premiums.

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What is an IRMAA for Medicare?

Most Medicare beneficiaries pay the standard Part B premium. Beneficiaries who have a Part D plan typically pay a monthly premium for their drug coverage.

  • The standard premium for Medicare Part B in 2022 is $170.10 per month.

  • Part D premiums are sold by private insurers so there is no “standard” premium. The average premium for a standalone Part D prescription drug plan in 2022 is $47.59 per month.1

But beneficiaries with higher reported incomes may pay an additional fee on top of their Part B and/or Part D premium. This is known as the Income-Related Monthly Adjusted Amount, or IRMAA.

The income that makes a beneficiary subject to the IRMAA is based on the modified adjusted gross income reported on their taxes from two years prior.

For example, beneficiaries who pay the IRMAA added to their Medicare premiums in 2022 are doing so based on the income they reported on their 2020 tax returns.

The chart below shows how IRMAA amounts for Medicare Part B and Part D premiums in 2022.

Medicare Part B & Part D IRMAA
2020 Individual tax return 2020 Joint tax return 2020 Married and separate tax return 2022 Part B premium 2022 Part D premium

$91,000 or less

$182,000 or less

$91,000 or less


Your plan premium

More than $91,000 and up to $114,000

More than $182,000 and up to $228,000



You plan premium + $12.40

More than $114,000 up to $142,000

More than $228,000 up to $284,000



Your plan premium + $32.10

More than $142,000 up to $170,000

More than $284,000 up to $340,000



Your plan premium + $51.70

More than $170,000 up to $500,000

More than $340,000 up to $750,000

More than $91,000 up to $409,000


Your plan premium + $71.30

More than $500,000

More than $750,000

More than $409,000


Your plan premium + $77.90

What will the Medicare IRMAA be in 2022?

The chart below shows the expected IRMAA income brackets for 2022 Medicare Part B and Part D premiums. 

2022 Medicare IRMAA Brackets
2022 (based on 2020 individual tax return) 2022 (based on 2020 joint tax return)

$91,000 or less

$182,000 or less

More than $91,000 and up to $114,000

More than $182,000 and up to $228,000

More than $114,000 up to $142,000

More than $228,000 and up to $284,000

More than $142,000 up to $170,000

More than $284,000 and up to $340,000

More than $170,000 up to $500,000

More than $340,000 up to $750,000

More $500,000

More than $750,000

This will mark the first time in a decade that the tax has been indexed to inflation.

What does this mean for Medicare beneficiaries?

As you can see by comparing the charts above, indexing IRMAA’s income brackets according to the CPI-U will increase the minimum income amount for each bracket. 

What kind of effect will that have on beneficiaries and the Medicare program itself?

  • Because the income required for each tax bracket is increased, fewer people may potentially enter into the first IRMAA bracket. The change will also delay how quickly Medicare beneficiaries may cross into a higher IRMAA bracket.

  • If fewer people are paying the IRMAA for their Part B premiums – or if they are paying a lower rate than they would have otherwise – Medicare’s trust fund will receive less funding from IRMAA payments.

Learn more about Medicare coverage options

Call to speak with a licensed insurance agent today. An agent can help you compare Medicare Advantage (Part C) plans that are available where you live.  

Medicare Advantage plans replace Medicare Part A and Part B and combine their benefits into one plan. Many Medicare Advantage plans also include prescription drug coverage.

Learn more about Medicare Advantage plans in your area and find a plan that fits your coverage needs and your budget.

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About the author

Christian Worstell is a licensed insurance agent and a Senior Staff Writer for He is passionate about helping people navigate the complexities of Medicare and understand their coverage options.

His work has been featured in outlets such as Vox, MSN, and The Washington Post, and he is a frequent contributor to health care and finance blogs.

Christian is a graduate of Shippensburg University with a bachelor’s degree in journalism. He currently lives in Raleigh, NC.

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